ppc_fp128 and fp128 are both 128-bit floating point types. However, we can't do conversion between them now. (trunc/ext are not allowed for same-size fp types)
This patch adds two new intrinsics: llvm.ppc.convert.f128.to.ppcf128 and llvm.convert.ppcf128.to.f128, to support such conversion.
clang-tidy: warning: invalid case style for variable 'dl' [readability-identifier-naming]
not useful